umbral | fb62df7d72d084f755b3eb181c44287fedc95b0e01fd1033e4c60add76432ff7

Analysis

max time kernel
144s
max time network
150s
platform
windows11-21h2_x64
resource
win11-20240412-en
resource tags

arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system
submitted
13-04-2024 10:34

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General

Target

pluh/external roblox launcher.exe
Size

229KB
MD5

65536dc4bcafc3ee3c1dcf7ed64c12df
SHA1

e1ca248ae2ef47a6b89ad6fb155f4d5ec3674e9c
SHA256

98e7e144b7bc45bd52601d093b1e447cf486bf2e8cd2ba84e8325e2d7b269662
SHA512

25f5043750e42d312b879dcb1b37bc4621790f7402befa21578818c8de6020f1983a984bde79eeaca60b3cd12654fe2dae6e728826e0c4da3794be3519d3bcc2
SSDEEP

6144:OwloZM3fsXtioRkts/cnnK6cMlkCanywvrY8hkijD6yBeb8e1mvpi:PoZ1tlRk83MlkCanywvrY8hkijD6yQiw

Score

10^/10

umbral spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral3/memory/4360-0-0x000001F3247F0000-0x000001F324830000-memory.dmp	family_umbral

Umbral
Umbral stealer is an opensource moduler stealer written in C#.
stealer umbral

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	external roblox launcher.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
1	ip-api.com

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2416	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4088	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
4360	external roblox launcher.exe
3560	powershell.exe
3560	powershell.exe
2464	powershell.exe
2464	powershell.exe
2180	powershell.exe
2180	powershell.exe
1032	powershell.exe
1032	powershell.exe
1480	powershell.exe
1480	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4360	external roblox launcher.exe
Token: SeIncreaseQuotaPrivilege	2672	wmic.exe
Token: SeSecurityPrivilege	2672	wmic.exe
Token: SeTakeOwnershipPrivilege	2672	wmic.exe
Token: SeLoadDriverPrivilege	2672	wmic.exe
Token: SeSystemProfilePrivilege	2672	wmic.exe
Token: SeSystemtimePrivilege	2672	wmic.exe
Token: SeProfSingleProcessPrivilege	2672	wmic.exe
Token: SeIncBasePriorityPrivilege	2672	wmic.exe
Token: SeCreatePagefilePrivilege	2672	wmic.exe
Token: SeBackupPrivilege	2672	wmic.exe
Token: SeRestorePrivilege	2672	wmic.exe
Token: SeShutdownPrivilege	2672	wmic.exe
Token: SeDebugPrivilege	2672	wmic.exe
Token: SeSystemEnvironmentPrivilege	2672	wmic.exe
Token: SeRemoteShutdownPrivilege	2672	wmic.exe
Token: SeUndockPrivilege	2672	wmic.exe
Token: SeManageVolumePrivilege	2672	wmic.exe
Token: 33	2672	wmic.exe
Token: 34	2672	wmic.exe
Token: 35	2672	wmic.exe
Token: 36	2672	wmic.exe
Token: SeIncreaseQuotaPrivilege	2672	wmic.exe
Token: SeSecurityPrivilege	2672	wmic.exe
Token: SeTakeOwnershipPrivilege	2672	wmic.exe
Token: SeLoadDriverPrivilege	2672	wmic.exe
Token: SeSystemProfilePrivilege	2672	wmic.exe
Token: SeSystemtimePrivilege	2672	wmic.exe
Token: SeProfSingleProcessPrivilege	2672	wmic.exe
Token: SeIncBasePriorityPrivilege	2672	wmic.exe
Token: SeCreatePagefilePrivilege	2672	wmic.exe
Token: SeBackupPrivilege	2672	wmic.exe
Token: SeRestorePrivilege	2672	wmic.exe
Token: SeShutdownPrivilege	2672	wmic.exe
Token: SeDebugPrivilege	2672	wmic.exe
Token: SeSystemEnvironmentPrivilege	2672	wmic.exe
Token: SeRemoteShutdownPrivilege	2672	wmic.exe
Token: SeUndockPrivilege	2672	wmic.exe
Token: SeManageVolumePrivilege	2672	wmic.exe
Token: 33	2672	wmic.exe
Token: 34	2672	wmic.exe
Token: 35	2672	wmic.exe
Token: 36	2672	wmic.exe
Token: SeDebugPrivilege	3560	powershell.exe
Token: SeDebugPrivilege	2464	powershell.exe
Token: SeDebugPrivilege	2180	powershell.exe
Token: SeDebugPrivilege	1032	powershell.exe
Token: SeIncreaseQuotaPrivilege	1036	wmic.exe
Token: SeSecurityPrivilege	1036	wmic.exe
Token: SeTakeOwnershipPrivilege	1036	wmic.exe
Token: SeLoadDriverPrivilege	1036	wmic.exe
Token: SeSystemProfilePrivilege	1036	wmic.exe
Token: SeSystemtimePrivilege	1036	wmic.exe
Token: SeProfSingleProcessPrivilege	1036	wmic.exe
Token: SeIncBasePriorityPrivilege	1036	wmic.exe
Token: SeCreatePagefilePrivilege	1036	wmic.exe
Token: SeBackupPrivilege	1036	wmic.exe
Token: SeRestorePrivilege	1036	wmic.exe
Token: SeShutdownPrivilege	1036	wmic.exe
Token: SeDebugPrivilege	1036	wmic.exe
Token: SeSystemEnvironmentPrivilege	1036	wmic.exe
Token: SeRemoteShutdownPrivilege	1036	wmic.exe
Token: SeUndockPrivilege	1036	wmic.exe
Token: SeManageVolumePrivilege	1036	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4360 wrote to memory of 2672	4360	external roblox launcher.exe	78
PID 4360 wrote to memory of 2672	4360	external roblox launcher.exe	78
PID 4360 wrote to memory of 4812	4360	external roblox launcher.exe	81
PID 4360 wrote to memory of 4812	4360	external roblox launcher.exe	81
PID 4360 wrote to memory of 3560	4360	external roblox launcher.exe	83
PID 4360 wrote to memory of 3560	4360	external roblox launcher.exe	83
PID 4360 wrote to memory of 2464	4360	external roblox launcher.exe	85
PID 4360 wrote to memory of 2464	4360	external roblox launcher.exe	85
PID 4360 wrote to memory of 2180	4360	external roblox launcher.exe	87
PID 4360 wrote to memory of 2180	4360	external roblox launcher.exe	87
PID 4360 wrote to memory of 1032	4360	external roblox launcher.exe	89
PID 4360 wrote to memory of 1032	4360	external roblox launcher.exe	89
PID 4360 wrote to memory of 1036	4360	external roblox launcher.exe	91
PID 4360 wrote to memory of 1036	4360	external roblox launcher.exe	91
PID 4360 wrote to memory of 1044	4360	external roblox launcher.exe	93
PID 4360 wrote to memory of 1044	4360	external roblox launcher.exe	93
PID 4360 wrote to memory of 4300	4360	external roblox launcher.exe	95
PID 4360 wrote to memory of 4300	4360	external roblox launcher.exe	95
PID 4360 wrote to memory of 1480	4360	external roblox launcher.exe	97
PID 4360 wrote to memory of 1480	4360	external roblox launcher.exe	97
PID 4360 wrote to memory of 2416	4360	external roblox launcher.exe	99
PID 4360 wrote to memory of 2416	4360	external roblox launcher.exe	99
PID 4360 wrote to memory of 656	4360	external roblox launcher.exe	101
PID 4360 wrote to memory of 656	4360	external roblox launcher.exe	101
PID 656 wrote to memory of 4088	656	cmd.exe	103
PID 656 wrote to memory of 4088	656	cmd.exe	103

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
4812	attrib.exe

C:\Users\Admin\AppData\Local\Temp\pluh\external roblox launcher.exe
"C:\Users\Admin\AppData\Local\Temp\pluh\external roblox launcher.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4360
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2672
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\pluh\external roblox launcher.exe"
  2⤵
  - Views/modifies file attributes
  PID:4812
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\pluh\external roblox launcher.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3560
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -EnableNetworkProtection AuditMode -Force -MAPSReporting Disabled -SubmitSamplesConsent NeverSend && powershell Set-MpPreference -SubmitSamplesConsent 2
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2464
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2180
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1032
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1036
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:1044
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:4300
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:1480
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2416
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\pluh\external roblox launcher.exe" && pause
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:656
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - Runs ping.exe
    PID:4088

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
2e8eb51096d6f6781456fef7df731d97

SHA1
ec2aaf851a618fb43c3d040a13a71997c25bda43

SHA256
96bfd9dd5883329927fe8c08b8956355a1a6ceb30ceeb5d4252b346df32bc864

SHA512
0a73dc9a49f92d9dd556c2ca2e36761890b3538f355ee1f013e7cf648d8c4d065f28046cd4a167db3dea304d1fbcbcea68d11ce6e12a3f20f8b6c018a60422d2

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
948B

MD5
9d95ef974f6c0608ef5362d05d14440d

SHA1
80d09108e95f4695b3ccb3f73710a934406be9bb

SHA256
a03be3ffa46d3aadbe570364b7fa85cc221355591f67ab06d5ec19f2fb9ba396

SHA512
4e63a4bfd09661a021d5d317b76600a84de03c7f748fc77ad373eaa93c97b58b53f13b171807a78eec6c12dbab58c8bc9b903296f28555631066bb73153ce410

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
1KB

MD5
fb2c523128a7b6c6f309e3a45b1c2bd1

SHA1
423c4df1f178fbc37366f56cb1854dca619426dc

SHA256
b33d564629223db7f77553d7713145f4ddb168eddb5c25ccb96c7d857b8b3541

SHA512
f75067b644a771225f3daff7aa52a3013bfdb00088b7c0464fc35f79a9c5d633f1fdf963490affb52cbcbd21b4895a10cdbb605934fe654f4aa325aa2c82a10f

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
1KB

MD5
6ca67a1a64ff4dd3f09a2393fccba8fa

SHA1
906350e7db31efc71679bbdbbcf1133aa2d31c1d

SHA256
6bc103c2e75b013034c77bb204ccbe43c365e9b6cb1697b9b5a1e20dda43427e

SHA512
4d1d3d52107b2eb2faf6918d0559a08acbe89b6a889f6300c55742d91f596a6764c637fc386c80ecbc434d0496ee83f243054c66b9eeb7adef4b2093e932b066

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_jqa4peov.mzx.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1032-77-0x0000022898780000-0x0000022898790000-memory.dmp

Filesize
64KB

Download
memory/1032-79-0x00007FF8AC040000-0x00007FF8ACB02000-memory.dmp

Filesize
10.8MB

Download
memory/1032-75-0x0000022898780000-0x0000022898790000-memory.dmp

Filesize
64KB

Download
memory/1032-74-0x0000022898780000-0x0000022898790000-memory.dmp

Filesize
64KB

Download
memory/1032-65-0x00007FF8AC040000-0x00007FF8ACB02000-memory.dmp

Filesize
10.8MB

Download
memory/1480-94-0x00007FF8AC040000-0x00007FF8ACB02000-memory.dmp

Filesize
10.8MB

Download
memory/1480-95-0x000001F7F7FB0000-0x000001F7F7FC0000-memory.dmp

Filesize
64KB

Download
memory/1480-96-0x000001F7F7FB0000-0x000001F7F7FC0000-memory.dmp

Filesize
64KB

Download
memory/1480-98-0x00007FF8AC040000-0x00007FF8ACB02000-memory.dmp

Filesize
10.8MB

Download
memory/2180-41-0x00007FF8AC040000-0x00007FF8ACB02000-memory.dmp

Filesize
10.8MB

Download
memory/2180-64-0x00007FF8AC040000-0x00007FF8ACB02000-memory.dmp

Filesize
10.8MB

Download
memory/2180-53-0x000001F96CCE0000-0x000001F96CCF0000-memory.dmp

Filesize
64KB

Download
memory/2180-49-0x000001F96CCE0000-0x000001F96CCF0000-memory.dmp

Filesize
64KB

Download
memory/2464-17-0x00007FF8AC040000-0x00007FF8ACB02000-memory.dmp

Filesize
10.8MB

Download
memory/2464-29-0x0000023FC9010000-0x0000023FC9020000-memory.dmp

Filesize
64KB

Download
memory/2464-18-0x0000023FC9010000-0x0000023FC9020000-memory.dmp

Filesize
64KB

Download
memory/2464-19-0x0000023FC9010000-0x0000023FC9020000-memory.dmp

Filesize
64KB

Download
memory/2464-33-0x00007FF8AC040000-0x00007FF8ACB02000-memory.dmp

Filesize
10.8MB

Download
memory/2464-31-0x0000023FC9010000-0x0000023FC9020000-memory.dmp

Filesize
64KB

Download
memory/3560-4-0x00000184FB730000-0x00000184FB740000-memory.dmp

Filesize
64KB

Download
memory/3560-16-0x00007FF8AC040000-0x00007FF8ACB02000-memory.dmp

Filesize
10.8MB

Download
memory/3560-3-0x00007FF8AC040000-0x00007FF8ACB02000-memory.dmp

Filesize
10.8MB

Download
memory/3560-13-0x00000184FB740000-0x00000184FB762000-memory.dmp

Filesize
136KB

Download
memory/3560-14-0x00000184FB730000-0x00000184FB740000-memory.dmp

Filesize
64KB

Download
memory/4360-81-0x000001F33EF70000-0x000001F33EF7A000-memory.dmp

Filesize
40KB

Download
memory/4360-0-0x000001F3247F0000-0x000001F324830000-memory.dmp

Filesize
256KB

Download
memory/4360-30-0x00007FF8AC040000-0x00007FF8ACB02000-memory.dmp

Filesize
10.8MB

Download
memory/4360-82-0x000001F33F0C0000-0x000001F33F0D2000-memory.dmp

Filesize
72KB

Download
memory/4360-37-0x000001F33F030000-0x000001F33F080000-memory.dmp

Filesize
320KB

Download
memory/4360-38-0x000001F33EF50000-0x000001F33EF6E000-memory.dmp

Filesize
120KB

Download
memory/4360-36-0x000001F33EFB0000-0x000001F33F026000-memory.dmp

Filesize
472KB

Download
memory/4360-2-0x000001F3265D0000-0x000001F3265E0000-memory.dmp

Filesize
64KB

Download
memory/4360-1-0x00007FF8AC040000-0x00007FF8ACB02000-memory.dmp

Filesize
10.8MB

Download
memory/4360-103-0x00007FF8AC040000-0x00007FF8ACB02000-memory.dmp

Filesize
10.8MB

Download